These functions extract forward and reverse transformations in a form
compatible with applyTransform and other functions. They are
(S3) generic, but only methods for "niftyreg" objects currently
exist.
forward(object, ...)# S3 method for niftyreg
forward(object, i = 1L, ...)
reverse(object, ...)
# S3 method for niftyreg
reverse(object, i = 1L, ...)
A transformation object, an image or affine matrix, with suitable
attributes giving pointers to source and target images. If there is no
transformation information in the object then NULL is returned.
An R object.
Additional arguments. Not currently used.
The transformation number to extract. There will only be more than one in the case of multiple registration.
Jon Clayden <code@clayden.org>
niftyreg, applyTransform